Gaya APA
Das, Braja M. (1985).
Principles of geotechnical engineering (3).
Boston:
PWS Publishing Company .
Gaya Chicago
Das, Braja M.
Principles of geotechnical engineering.
3
Boston:
PWS Publishing Company ,
1985.
Text.
Gaya MLA
Das, Braja M.
Principles of geotechnical engineering.
3
Boston:
PWS Publishing Company ,
1985.
Text.
Gaya Turabian
Das, Braja M.
Principles of geotechnical engineering.
3
Boston:
PWS Publishing Company ,
1985.
Print.